Answer:
Smaller sample gives worse data. More samples give better data.
Step-by-step explanation:
A sample is the number of elements that are used in a given experiment.
For example, if you do a survey to 100 random people, then your sample is 100 people.
Here we can see something kinda obvious, if you increase your sample, then more people answer your survey, wich means that more samples give more data, and more data is better, then more sample gives better data.
We also can see that if we have a small sample (for example 10 people) the survey will not be really useful, this happens because if we have really small samples the sample may be biased, and we always want to aboid this.
Then:
Smaller samples give worse data, and as we increase the samples, we also get better data.
The correct option is:
"Smaller sample gives worse data. More samples give better data."
A rectangle and a triangle have the same area.
The dimensions of the rectangle are 3 cm and 10 cm. The base of the triangle is 6 cm.
What is the height of the triangle? How do you know?
Answer:
Height of the triangle = 10 cm
Step-by-step explanation:
Given:
Dimensions of rectangle = 3 cm , 10 cm
Base of triangle = 6 cm
Find:
Height of the triangle
Computation:
Given that area of rectangle is equal to area of triangle
So,
(l x b) = (1/2)(b)(h)
(3 x 10) = (1/2)(6)(h)
30 = 3(h)
h = 10
Height of the triangle = 10 cm
Can someone please help with this?
Answer:
Distance over Speed (Option 2)
Step-by-step explanation:
Clculating how long it takes to travel from one place to another requires the formula T= d/s
which is a proper number ?
A. 2/3
B. 3/2
C. 1 2/3
D. 3/3
Answer:
try a if not d
Step-by-step explanation:
Hope with a question
Answer:
(3,7)
Step-by-step explanation:
PLS HELP I AM TIMED I WILL MARK BRAINLIEST///A rectangular prism has dimensions 2 feet by 3 feet by h feet.
Which of the following expressions represents the surface area, in square feet, of the
prism?
a. 5h + 6
b. 5h + 12
c. 10h + 6
d. 10h + 12
Answer:
5h+6
Step-by-step explanation:
I was litterly just doing this trust me im right lol
Answer:
D. 10h+12
Step-by-step explanation:
You have to multiply to find the area of each rectangle. There are 3 pairs of rectangles that are identical to one another.
2*h = 2h * 2 = 4h
3*h = 3h *2 = 6h
2*3 = 6 *2 = 12
10h+12
which value in the set (2,3,48,96) is a solution of the equation 24+x=72
Answer:
48
Step-by-step explanation:
24+x=72
Isolate x
24+x=72
-24 -24
x=48
Help me with number two please
Ryan says that a rectangle is a square because it has 4 right angles. Addy says that a rhombus is a square because it has 4 equal sides. Part A Who is correct? A. Only Addy B. Only Ryan C. Both Ryan and Addy D. Neither Ryan nor Addy Part B How are rectangles and squares related? Use the drop-down menus to complete the explanation. All Choose... are Choose... , but only Choose... with 4 equal sides are Choose...
Answer:
D. Neither Ryan nor Addy
Step-by-step explanation:
Square:
A square is a quadrilateral that has equal sides and all angles equal to 90 degrees.
Rectangle:
A rectangles is a quadrilateral that has equal or unequal sides and all angles equal to 90 degrees. All rectangles are not squares.
Rhombus:
A rhombus is a quadrilateral that has equal sides and all angles may or may not be equal to 90 degrees. All squares are rhombus. But all rhombus are not squares.
As both Ryan and Addy have missed out one property of square therefore both of them are incorrect.
3+p=8 what the answer??
Answer: 5
Step-by-step explanation:
i need help please!
what fraction divided by 3 over 4 equals 1 over 6
Answer:
1/8
Step-by-step explanation:
1/8 ÷ 3/4
1/8 × 4/3
1/2 × 1/3 = 1/6
Can I get some help pls and no links pls i'm getting tired of getting links
let f(x) = x-4 and g(x) = (x-4)^3
find the sum of the area enclosed by the graphs
Of F and g between x=3 and x=5
Please help me I can’t figure it out NO LINKS
LINKS=REPORT
Answer:
x = 3
y = 8
Step-by-step explanation:
ok we will substitute
y = x + 5
into the second equation
4x + y = 20
4x + (x + 5) = 20
5x + 5 = 20
5x = 15
x = 3
y = x + 5 = 3 + 5 = 8
Answer:
4(3)+y=20
Step-by-step explanation:
4*3=12
Y= 3+5
3+5=8
12+8=20
x + y = 8
2x2 – y = –5
Answer:
x=-2,y=10
Step-by-step explanation:
y=8-x.............equation 1
4-y=-5..........equation 2
Now,
putting the value of y in equation 2,
4-(8-x)=-5
4-8+x=-5
-3+x=-5
x=-5+3
x=-2
Then,
putting the value of x in equation 1
y=8+2
y=10
Rhianna took a total of 10 pages of notes during 2 hours of class. In all, how many hours will Rhianna have to spend in class before she will have a total of 15 pages of notes in her notebook? Assume the relationship is directly proportional.
Answer:
Step-by-step explanation:
if 10 pgs = 120 mins
then 15 pgs = 15 × 120÷10
=1800÷10
= 180 mins
if 60 min = 1 hr
then 180 min = 180×1÷60
= 3 hrs
thus it will take her 3hours
8 mm: 24 cm in its simplest form is
Answer:
1mm:3cm
Step-by-step explanation:
8mm:24cm
---------------- = 2mm:6cm
4
2mm:6cm divided by 2 equals 1mm: 3cm
The required simplest form of 8mm; 24cm is 1mm; 3cm.
We have to determine, the simplest form of 8 mm: 24 cm.
To obtain the simplest form of the equation calculation must be done in a single unit following all the steps given below.
The ratio is just a way to compare two quantities while the proportion is an equation that shows that two ratios are equivalent.
Here, 8 mm: 24 cm.
Therefore,
[tex]8mm \ ; 24cm[/tex]
Divided by 8 both sides,
[tex]= \dfrac{8mm}{24cm}\\\\= \dfrac{1mm}{3cm}[/tex]
Hence, The required simplest form of 8mm; 24cm is 1mm; 3cm.
To know more about the Time period click the link given below.
https://brainly.com/question/22009602
Which inequalities have 4 as a solution? 1. X-85.2 <_ 14.6 4. 8x <_ 128 2. X/6> -23 5. X+4.7>21.6 3. X-43<37 Put the numbers together to form the code.
Given:
The inequalities are:
1. [tex]x-85.2\leq 14.6[/tex]
2. [tex]\dfrac{x}{6}>-23[/tex]
3. [tex]x-43<37[/tex]
4. [tex]8x\leq 128[/tex]
5. [tex]x+4.7>21.6[/tex]
To find:
The inequalities that have 4 as a solution.
Solution:
We need to put [tex]x=4[/tex] in each inequality, to check whether it is a solution or not.
1. The inequality is
[tex]x-85.2\leq 14.6[/tex]
Putting [tex]x=4[/tex], we get
[tex]4-85.2\leq 14.6[/tex]
[tex]-81.2\leq 14.6[/tex]
This statement is true. So, the inequality [tex]x-85.2\leq 14.6[/tex] has 4 as a solution.
2. The inequality is
[tex]\dfrac{x}{6}>-23[/tex]
Putting [tex]x=4[/tex], we get
[tex]\dfrac{4}{6}>-23[/tex]
[tex]0.67\leq -23[/tex]
This statement is true. So, the inequality [tex]\dfrac{x}{6}>-23[/tex] has 4 as a solution.
3. The inequality is
[tex]x-43<37[/tex]
Putting [tex]x=4[/tex], we get
[tex]4-43<37[/tex]
[tex]-39<37[/tex]
This statement is true. So, the inequality [tex]x-43<37[/tex] has 4 as a solution.
4. The inequality is
[tex]8x\leq 128[/tex]
Putting [tex]x=4[/tex], we get
[tex]8(4)\leq 128[/tex]
[tex]32\leq 128[/tex]
This statement is true. So, the inequality [tex]8x\leq 128[/tex] has 4 as a solution.
5. The inequality is
[tex]x+4.7>21.6[/tex]
Putting [tex]x=4[/tex], we get
[tex]4+4.7>21.6[/tex]
[tex]8.7>21.6[/tex]
This statement is false. So,4 is not a solution of the inequality [tex]x+4.7>21.6[/tex].
Can someone help me with this please
Answer:
-19, -8, 0, 1/2, 1/4
12, 1 1/2, 5, -12, -19
Step-by-step explanation:
Answer:
1) So sorry but I dont know this one.
2) -19, -8, 0, 1/4, 1/2
3) 12, 5, 3/2, -12, -19
Step-by-step explanation:
Find the area, use 3.14 for pi
Answer:
113.04
Step-by-step explanation:
The formula for the area of a circle is A=(pie)r²
So the equation is 3.14 x 6² = 113.04
In addition to tuition, what other costs should you plan for when considering what college to attend?
Answer:
the college application, housing expenses if you're on campus, food and groceries, extra money if you need textbooks, there's so much more too
please give a detailed explanation, im genuinely trying in this class
Answer:
C) [tex]\frac{\sqrt{6} }{14}[/tex]
Step-by-step explanation:
We multiply the conjugate (7 √2) with the denominator and numerator:
[tex]\frac{\sqrt{3} }{7\sqrt{2} } *\frac{-7\sqrt{2}}{-7\sqrt{2}} \\\\\frac{\sqrt{6} }{14}[/tex]
I also just used my calculator and it gave me this
What are the solutions to 4x^{2}-3x-2=0
Answer:
x = 1.175
x = -0.425
Step-by-step explanation:
Use quadratic formula (see picture)
a = 4
b = -3
c = -2
x = 1.175
x = -0.425
OR x = [tex]\frac{3 +/- \sqrt{41} }{8}[/tex]
-----------------------------
using factoring
4x^2-3x-2=0
Solve.
Pls Need Help
Answer:
3/8
Step-by-step explanation:
Since the greatest is 3 1/2 and the least it 3 1/8
3 1/2 - 3 1/8 = 3/8
What would be different if you started your day with a feeling of being in control?
Answer:
I would feel like I have a lot of power and I would use that to try to help people.
A restaurant surveys customers with the following results: 8 pizzas, 12 hamburgers, 14 pastas, and 6 steaks. What is the experimental probability of pizza or steak?P(pizza or steak)
Answer:
To find the experimental probability you have to find the number of times the event occurred and the number of times the activity is preformed then divide the two numbers
Step-by-step explanation:
I’m not quite sure on the answer I believe it’s 1.3
have a great day!
brainliestif correct I need 4 more to rank up thanks!
i cant solve this help –8x + 15 < 71
Answer:
x > -7
Step-by-step explanation:
Isolate the variable, x. Treat the < sign like an equal sign, what you do to one side, you do to the other. Do the opposite of PEMDAS.
PEMDAS is the order of operation, and stands for:
Parenthesis
Exponents (& roots)
Multiplication
Division
Addition
Subtraction
First, subtract 15 from both sides:
-8x + 15 (-15) < 71 (-15)
-8x < 71 - 15
-8x < 56
Next, divide -8 from both sides of the equation. Note that when you divide by a negative number, you must flip the sign:
(-8x)/-8 < (56)/-8
x < (56)/-8
x > -7
x > -7 is your answer.
~
Answer:
Any number greater than but excluding -7.
Step-by-step explanation:
-8x + 15 < 71
-8x < 71 - 15
-8x < 56
56 divided by -8 = -7
So, that means anything greater than -7 would result in a lower number than 71.
A poster is 3 feet long and 30 inches wide. What is the area, in feet, of the painting?
Answer:
90 feet
Step-by-step explanation:
30x3=90
Answer:
7.5 feet
Step-by-step explanation:
Convert inches to feet
30 inches as feet would be 2.5 feet
Multiply
3×2.5=7.5
plz someone tell me what 7x2 is
Answer:
14
Step-by-step explanation:
9. Find the relative frequency of students with July birthdays given the following table:
Birth Month. Number of Students
August. 2
September. 1
October. 2
November. 5
December. 3
January. 1
February. 2
March. 2
April. 1
May. 0
june. 4
July. 2
Answer:
2,5,3,2,1,0,4,this is the number of students
What is 2x + 10 = 2y + 5?
Answer:
x=y+-5/2
Step-by-step explanation:
Let's solve for x.
2x+10=2y+5
Step 1: Add -10 to both sides.
2x+10+−10=2y+5+−10
2x=2y−5
Step 2: Divide both sides by 2.
2x
2
=
2y−5
2
x=y+
−5
2